Neighbours hiding in the Galactic plane, a new M/L dwarf candidate for the 8 pc sample

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Volume 561 (January 2014)

A&A, 561 (2014) A113

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Table 1

Multi-epoch positions, their uncertainties, applied corrections (offsets), and photometry of WISE J0720−0846.

α (J2000)	δ (J2000)	σ _α,δ	Δ_α	Δ_δ	Epoch	Source	Photometry^b
(°)	(°)	(mas)	(mas)	(mas)	(year)		(mag)

110.014078	−8.779181	240	+20	−307	1955.882	SSS E	E_pg = 17.08
110.014088	−8.779175	370	+78	+351	1955.882	DSS O^a
110.013690	−8.779973	70	+27	+85	1981.188	SSS I	I_pg = 12.91
110.013653	−8.780144	220	−16	+119	1985.953	SSS R	R_pg = 16.80
110.013642	−8.780193	350	+57	−51	1990.971	SSS B_J	B_J_pg = 19.76
110.013581	−8.780536	50	−85	+184	1998.978	DENIS	I = 13.805 J = 10.674 K_s = 9.399
110.013557	−8.780529	50	0	0	1999.142	2MASS	J = 10.628 H = 9.919 K_s = 9.467
110.013454	−8.780566	400	+120	−70	2001.005	SSS H_α	RHa_pg = 16.11
110.013400	−8.780524	500	+51	−25	2001.049	SSS short-R	SR2_pg = 17.00
110.013484	−8.780679	150	+28	+17	2004.066	CMC	r′ = 16.850
110.013350	−8.780903	60	−6	−2	2010.266	WISE all-sky	w1 = 9.169 w2 = 8.857 w3 = 8.278
110.013415	−8.780936	120	−11	−29	2010.792	WISE post-cryo^c

Notes. The α,δ positions of the target are already corrected for the mean offsets (Δ_α, Δ_δ) of the reference stars with respect to their 2MASS positions.

^(a)

Position measured on FITS image downloaded from http://archive.stsci.edu/cgi-bin/dss_plate_finder.

^(b)

Photographic magnitudes marked as _pg are accurate to about 0.1−0.2 mag. Other magnitudes listed are accurate to about 0.02 mag, except for DENIS J (±0.06 mag) and K_s (±0.09 mag), and the CCD-based CMC r′ (unknown).

^(c)

Averaged coordinates from 14 single exposures.

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